Auto merge of rust-lang#3985 - rust-lang:rustup-2024-10-22, r=RalfJung

Automatic Rustup

Cargo.lock

@@ -1907,7 +1907,7 @@ dependencies = [
  "anyhow",
  "clap",
  "fs-err",
- "rustc-hash 1.1.0",
+ "rustc-hash 2.0.0",
  "rustdoc-json-types",
  "serde",
  "serde_json",
@@ -3514,7 +3514,7 @@ dependencies = [
  "memmap2",
  "parking_lot",
  "portable-atomic",
- "rustc-hash 1.1.0",
+ "rustc-hash 2.0.0",
  "rustc-rayon",
  "rustc-stable-hash",
  "rustc_arena",
@@ -4211,7 +4211,7 @@ dependencies = [
 name = "rustc_pattern_analysis"
 version = "0.0.0"
 dependencies = [
- "rustc-hash 1.1.0",
+ "rustc-hash 2.0.0",
  "rustc_apfloat",
  "rustc_arena",
  "rustc_data_structures",
@@ -4609,7 +4609,7 @@ name = "rustdoc-json-types"
 version = "0.1.0"
 dependencies = [
  "bincode",
- "rustc-hash 1.1.0",
+ "rustc-hash 2.0.0",
  "serde",
  "serde_json",
 ]
@@ -5239,7 +5239,7 @@ dependencies = [
  "ignore",
  "miropt-test-tools",
  "regex",
- "rustc-hash 1.1.0",
+ "rustc-hash 2.0.0",
  "semver",
  "similar",
  "termcolor",

compiler/rustc_abi/src/callconv.rs

@@ -3,18 +3,23 @@ mod abi {
     pub(crate) use crate::Variants;
 }
 
+#[cfg(feature = "nightly")]
 use rustc_macros::HashStable_Generic;
 
-use crate::{Abi, Align, FieldsShape, HasDataLayout, Size, TyAbiInterface, TyAndLayout};
+#[cfg(feature = "nightly")]
+use crate::{Abi, FieldsShape, TyAbiInterface, TyAndLayout};
+use crate::{Align, HasDataLayout, Size};
 
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, HashStable_Generic)]
+#[cfg_attr(feature = "nightly", derive(HashStable_Generic))]
+#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
 pub enum RegKind {
     Integer,
     Float,
     Vector,
 }
 
-#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, HashStable_Generic)]
+#[cfg_attr(feature = "nightly", derive(HashStable_Generic))]
+#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
 pub struct Reg {
     pub kind: RegKind,
     pub size: Size,
@@ -108,15 +113,8 @@ impl HomogeneousAggregate {
     }
 }
 
+#[cfg(feature = "nightly")]
 impl<'a, Ty> TyAndLayout<'a, Ty> {
-    /// Returns `true` if this is an aggregate type (including a ScalarPair!)
-    pub fn is_aggregate(&self) -> bool {
-        match self.abi {
-            Abi::Uninhabited | Abi::Scalar(_) | Abi::Vector { .. } => false,
-            Abi::ScalarPair(..) | Abi::Aggregate { .. } => true,
-        }
-    }
-
     /// Returns `Homogeneous` if this layout is an aggregate containing fields of
     /// only a single type (e.g., `(u32, u32)`). Such aggregates are often
     /// special-cased in ABIs.

compiler/rustc_abi/src/layout.rs

@@ -11,8 +11,10 @@ use crate::{
     Variants, WrappingRange,
 };
 
+#[cfg(feature = "nightly")]
 mod ty;
 
+#[cfg(feature = "nightly")]
 pub use ty::{FIRST_VARIANT, FieldIdx, Layout, TyAbiInterface, TyAndLayout, VariantIdx};
 
 // A variant is absent if it's uninhabited and only has ZST fields.

compiler/rustc_abi/src/lib.rs

@@ -29,14 +29,14 @@ mod layout;
 mod tests;
 
 pub use callconv::{Heterogeneous, HomogeneousAggregate, Reg, RegKind};
-pub use layout::{
-    FIRST_VARIANT, FieldIdx, Layout, LayoutCalculator, LayoutCalculatorError, TyAbiInterface,
-    TyAndLayout, VariantIdx,
-};
+#[cfg(feature = "nightly")]
+pub use layout::{FIRST_VARIANT, FieldIdx, Layout, TyAbiInterface, TyAndLayout, VariantIdx};
+pub use layout::{LayoutCalculator, LayoutCalculatorError};
 
 /// Requirements for a `StableHashingContext` to be used in this crate.
 /// This is a hack to allow using the `HashStable_Generic` derive macro
 /// instead of implementing everything in `rustc_middle`.
+#[cfg(feature = "nightly")]
 pub trait HashStableContext {}
 
 #[derive(Clone, Copy, PartialEq, Eq, Default)]
@@ -1644,6 +1644,14 @@ pub struct LayoutS<FieldIdx: Idx, VariantIdx: Idx> {
 }
 
 impl<FieldIdx: Idx, VariantIdx: Idx> LayoutS<FieldIdx, VariantIdx> {
+    /// Returns `true` if this is an aggregate type (including a ScalarPair!)
+    pub fn is_aggregate(&self) -> bool {
+        match self.abi {
+            Abi::Uninhabited | Abi::Scalar(_) | Abi::Vector { .. } => false,
+            Abi::ScalarPair(..) | Abi::Aggregate { .. } => true,
+        }
+    }
+
     pub fn scalar<C: HasDataLayout>(cx: &C, scalar: Scalar) -> Self {
         let largest_niche = Niche::from_scalar(cx, Size::ZERO, scalar);
         let size = scalar.size(cx);

compiler/rustc_arena/src/lib.rs

@@ -23,7 +23,6 @@
 #![feature(maybe_uninit_slice)]
 #![feature(rustc_attrs)]
 #![feature(rustdoc_internals)]
-#![feature(strict_provenance)]
 #![warn(unreachable_pub)]
 // tidy-alphabetical-end
 

compiler/rustc_borrowck/src/lib.rs

@@ -187,10 +187,10 @@ fn do_mir_borrowck<'tcx>(
 
     let location_table = LocationTable::new(body);
 
-    let move_data = MoveData::gather_moves(body, tcx, param_env, |_| true);
+    let move_data = MoveData::gather_moves(body, tcx, |_| true);
     let promoted_move_data = promoted
         .iter_enumerated()
-        .map(|(idx, body)| (idx, MoveData::gather_moves(body, tcx, param_env, |_| true)));
+        .map(|(idx, body)| (idx, MoveData::gather_moves(body, tcx, |_| true)));
 
     let mut flow_inits = MaybeInitializedPlaces::new(tcx, body, &move_data)
         .into_engine(tcx, body)

compiler/rustc_borrowck/src/type_check/mod.rs

@@ -1128,7 +1128,6 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
             }
             let projected_ty = curr_projected_ty.projection_ty_core(
                 tcx,
-                self.param_env,
                 proj,
                 |this, field, ()| {
                     let ty = this.field_ty(tcx, field);
@@ -1919,7 +1918,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                 // than 1.
                 // If the length is larger than 1, the repeat expression will need to copy the
                 // element, so we require the `Copy` trait.
-                if len.try_eval_target_usize(tcx, self.param_env).map_or(true, |len| len > 1) {
+                if len.try_to_target_usize(tcx).is_none_or(|len| len > 1) {
                     match operand {
                         Operand::Copy(..) | Operand::Constant(..) => {
                             // These are always okay: direct use of a const, or a value that can evidently be copied.

compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs

@@ -133,6 +133,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
                 .expect_const()
                 .try_to_valtree()
                 .expect("expected monomorphic const in codegen")
+                .0
                 .unwrap_branch();
 
             assert_eq!(x.layout(), y.layout());
@@ -806,8 +807,10 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
                 ty::Uint(i) if i.bit_width() == Some(expected_int_bits) => m.load_scalar(fx),
                 ty::Array(elem, len)
                     if matches!(elem.kind(), ty::Uint(ty::UintTy::U8))
-                        && len.try_eval_target_usize(fx.tcx, ty::ParamEnv::reveal_all())
-                            == Some(expected_bytes) =>
+                        && len
+                            .try_to_target_usize(fx.tcx)
+                            .expect("expected monomorphic const in codegen")
+                            == expected_bytes =>
                 {
                     m.force_stack(fx).0.load(
                         fx,
@@ -907,8 +910,10 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
                 ty::Uint(i) if i.bit_width() == Some(expected_int_bits) => {}
                 ty::Array(elem, len)
                     if matches!(elem.kind(), ty::Uint(ty::UintTy::U8))
-                        && len.try_eval_target_usize(fx.tcx, ty::ParamEnv::reveal_all())
-                            == Some(expected_bytes) => {}
+                        && len
+                            .try_to_target_usize(fx.tcx)
+                            .expect("expected monomorphic const in codegen")
+                            == expected_bytes => {}
                 _ => {
                     fx.tcx.dcx().span_fatal(
                         span,

compiler/rustc_codegen_gcc/src/intrinsic/simd.rs

@@ -76,8 +76,10 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
             ty::Uint(i) if i.bit_width() == Some(expected_int_bits) => args[0].immediate(),
             ty::Array(elem, len)
                 if matches!(*elem.kind(), ty::Uint(ty::UintTy::U8))
-                    && len.try_eval_target_usize(bx.tcx, ty::ParamEnv::reveal_all())
-                        == Some(expected_bytes) =>
+                    && len
+                        .try_to_target_usize(bx.tcx)
+                        .expect("expected monomorphic const in codegen")
+                        == expected_bytes =>
             {
                 let place = PlaceRef::alloca(bx, args[0].layout);
                 args[0].val.store(bx, place);
@@ -696,8 +698,10 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
             }
             ty::Array(elem, len)
                 if matches!(*elem.kind(), ty::Uint(ty::UintTy::U8))
-                    && len.try_eval_target_usize(bx.tcx, ty::ParamEnv::reveal_all())
-                        == Some(expected_bytes) =>
+                    && len
+                        .try_to_target_usize(bx.tcx)
+                        .expect("expected monomorphic const in codegen")
+                        == expected_bytes =>
             {
                 // Zero-extend iN to the array length:
                 let ze = bx.zext(result, bx.type_ix(expected_bytes * 8));

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -1179,8 +1179,10 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
             ty::Uint(i) if i.bit_width() == Some(expected_int_bits) => args[0].immediate(),
             ty::Array(elem, len)
                 if matches!(elem.kind(), ty::Uint(ty::UintTy::U8))
-                    && len.try_eval_target_usize(bx.tcx, ty::ParamEnv::reveal_all())
-                        == Some(expected_bytes) =>
+                    && len
+                        .try_to_target_usize(bx.tcx)
+                        .expect("expected monomorphic const in codegen")
+                        == expected_bytes =>
             {
                 let place = PlaceRef::alloca(bx, args[0].layout);
                 args[0].val.store(bx, place);
@@ -1245,12 +1247,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
     }
 
     if name == sym::simd_shuffle_generic {
-        let idx = fn_args[2]
-            .expect_const()
-            .eval(tcx, ty::ParamEnv::reveal_all(), span)
-            .unwrap()
-            .1
-            .unwrap_branch();
+        let idx = fn_args[2].expect_const().try_to_valtree().unwrap().0.unwrap_branch();
         let n = idx.len() as u64;
 
         let (out_len, out_ty) = require_simd!(ret_ty, SimdReturn);
@@ -1469,8 +1466,10 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
             }
             ty::Array(elem, len)
                 if matches!(elem.kind(), ty::Uint(ty::UintTy::U8))
-                    && len.try_eval_target_usize(bx.tcx, ty::ParamEnv::reveal_all())
-                        == Some(expected_bytes) =>
+                    && len
+                        .try_to_target_usize(bx.tcx)
+                        .expect("expected monomorphic const in codegen")
+                        == expected_bytes =>
             {
                 // Zero-extend iN to the array length:
                 let ze = bx.zext(i_, bx.type_ix(expected_bytes * 8));

compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs

@@ -23,7 +23,6 @@ use rustc_middle::ty::layout::{IntegerExt, TyAndLayout};
 use rustc_middle::ty::{
     self, ExistentialProjection, GenericArgKind, GenericArgsRef, ParamEnv, Ty, TyCtxt,
 };
-use rustc_span::DUMMY_SP;
 use rustc_target::abi::Integer;
 use smallvec::SmallVec;
 
@@ -685,21 +684,25 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
         ty::ConstKind::Param(param) => {
             write!(output, "{}", param.name)
         }
-        ty::ConstKind::Value(ty, _) => {
+        ty::ConstKind::Value(ty, valtree) => {
             match ty.kind() {
                 ty::Int(ity) => {
                     // FIXME: directly extract the bits from a valtree instead of evaluating an
                     // already evaluated `Const` in order to get the bits.
-                    let bits = ct.eval_bits(tcx, ty::ParamEnv::reveal_all());
+                    let bits = ct
+                        .try_to_bits(tcx, ty::ParamEnv::reveal_all())
+                        .expect("expected monomorphic const in codegen");
                     let val = Integer::from_int_ty(&tcx, *ity).size().sign_extend(bits) as i128;
                     write!(output, "{val}")
                 }
                 ty::Uint(_) => {
-                    let val = ct.eval_bits(tcx, ty::ParamEnv::reveal_all());
+                    let val = ct
+                        .try_to_bits(tcx, ty::ParamEnv::reveal_all())
+                        .expect("expected monomorphic const in codegen");
                     write!(output, "{val}")
                 }
                 ty::Bool => {
-                    let val = ct.try_eval_bool(tcx, ty::ParamEnv::reveal_all()).unwrap();
+                    let val = ct.try_to_bool().expect("expected monomorphic const in codegen");
                     write!(output, "{val}")
                 }
                 _ => {
@@ -711,8 +714,9 @@ fn push_const_param<'tcx>(tcx: TyCtxt<'tcx>, ct: ty::Const<'tcx>, output: &mut S
                     // avoiding collisions and will make the emitted type names shorter.
                     let hash_short = tcx.with_stable_hashing_context(|mut hcx| {
                         let mut hasher = StableHasher::new();
-                        let ct = ct.eval(tcx, ty::ParamEnv::reveal_all(), DUMMY_SP).unwrap();
-                        hcx.while_hashing_spans(false, |hcx| ct.hash_stable(hcx, &mut hasher));
+                        hcx.while_hashing_spans(false, |hcx| {
+                            (ty, valtree).hash_stable(hcx, &mut hasher)
+                        });
                         hasher.finish::<Hash64>()
                     });
 

compiler/rustc_codegen_ssa/src/lib.rs

@@ -11,7 +11,6 @@
 #![feature(let_chains)]
 #![feature(negative_impls)]
 #![feature(rustdoc_internals)]
-#![feature(strict_provenance)]
 #![feature(trait_alias)]
 #![feature(try_blocks)]
 #![warn(unreachable_pub)]

compiler/rustc_codegen_ssa/src/mir/rvalue.rs

@@ -361,12 +361,16 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
             (Int(..) | Float(_), Int(..) | Float(_)) => bx.bitcast(imm, to_backend_ty),
             (Pointer(..), Pointer(..)) => bx.pointercast(imm, to_backend_ty),
             (Int(..), Pointer(..)) => bx.ptradd(bx.const_null(bx.type_ptr()), imm),
-            (Pointer(..), Int(..)) => bx.ptrtoint(imm, to_backend_ty),
+            (Pointer(..), Int(..)) => {
+                // FIXME: this exposes the provenance, which shouldn't be necessary.
+                bx.ptrtoint(imm, to_backend_ty)
+            }
             (Float(_), Pointer(..)) => {
                 let int_imm = bx.bitcast(imm, bx.cx().type_isize());
                 bx.ptradd(bx.const_null(bx.type_ptr()), int_imm)
             }
             (Pointer(..), Float(_)) => {
+                // FIXME: this exposes the provenance, which shouldn't be necessary.
                 let int_imm = bx.ptrtoint(imm, bx.cx().type_isize());
                 bx.bitcast(int_imm, to_backend_ty)
             }